Auxiliary air-valve.



B. G. RICH. AUXILIARY MR VALVE. APPLICATION men oc'f. 3. 19u.

Patented Mar. 12, 1918E Wl )WESSES UNITED STATES PATENT OFFICE.

AUXILIAEY IBPVALVFh Epecication of Letters Patent.

Patented Marw 12, 1918.

Apiilcation led October 3, 1917. Serial No. 191,550.

.To all 'whom t may concern: A

Be it known that I, BRAINARD G. Riou, a citizen of the United Sieges,and a resident of Colville in the county of Stevens and "State ofVlashington, haveg'nvented a new .manifold for/governing the inlet of.aiuto the uel' mixture before entering the cylinder toregu1ate thecharacter of the mixture l under given conditions requiring the richneofthe mixture to be varied.

An object ofthe invention is to'provide an ajuxillary ain-valve, and.automatic ccntrolling means therefor, whereby under-norl mulconditions,when" the automobile is running. on level lground, a regulated,`quantity of air will be supplied to the' intake mani.n fold "and wherebythe'l supply of air will be decreased in proportion to the grade ofascent or entirely cut oiupon a lpredetermined grade .being reached; thereverse automatically taking place when the autcmobile is running downgrade so that en increased quantity of air will be admitd to reduce' therichness of the mixtureu Important objects of the invention also aretoprovide v01' automatic valve control through the medium of a pendulousdevice; to so connect th endulous device that it will accommodateAitself to a lateral tilting of the automobile preventing bindin of thevalve elemehts, and to provide .or the manual movement of the pendulumfor cut? Weather conditions.

tingod the supply of air when starting with the engine cold, or running'under very cold An object of the invention also is to provide a valve ofthe indicated character having an inlet in the/valve body 0r fixed partand an inlet in the automatically movable -(3o-acting controllingelement to be brought more or'less into or out of register with thefirst inlet; together with manually controlled regulatin means to varythe capacity of the lirst in et.

A more specific object of the invention is to provide 'an auxiliary airvalve improved various particulars with reference to simy pli'city ofconstruction and with a View to promote convenience in assembling ,oredjusti'ng the parts. Reference isto'be had to the accomgmnyningdrawings forming a part ofthis specifi cation in which similarreference cliaract indicate corresponding parte in'all. the vie itheingunderstcod that thedrawings are i 'merely illustrative of oneexemple of the invention.

litigare 1 is a perspective view of an auxillary air valve embodying myinvention, showing' the name applied to an intake maf-ii fold;

Fig. is a longitudinal 'vertical section of the vaive;

Fig. 3 a@ transverse said valve;

Fig. 4 detail in transverse vertical section indicating tbe preferredmanner of operating the pull cord manually controlling the endulum.

y improved air valve is vertical "section of designed' to be tappedinto. an intake manifold A, the per tioula'r location of the valvedependingon the .form of manifold, employed. In the illustrated examplethe valve is formed and arranged for use where the intake manifold. ison the right hand side of the engine iooking from the drvers seat. Saidvalve in cludes a tubular body 10 having at the for- Ward 'end thereofsuitable means securing it in position, there being shown a threadednipple et the forward terminal 1l ada ted to engage e tapnedjhole in themeni old there being a poiygcnal iauge 12 at the base' of the nipple 1ladapted to receive a Wrench.. The valve body 10 1s rcvided with an inletorifice to be contro led, the said inlet in the presentinstance being inthe side of the valve body and indice-ted. by thenumeral 13. A sleeve 14is loose on the body 10 and is adapted by turning movement in opposite'directions to control the inlet 13. AIn the present arrangement thesleevel is formed with an inlet port 15 adapted tobe brought' more orless into or out of re ter'wth the inlet 13 or to entirely' cut oli t elatter. The

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sleeve 14 is held in position between the flange 12 and a set colla 16,the numeral 17 indicating the set screw of the collar.

To automatcall' turnighe sleeve 14 in opposite directions orhregulatingthe ow of air through the valve body I provide' s. pendulum designatedgenerally by the 'neri 18, which Ahas suspending arms ienne-.i

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with eyes or equivalent formations at the upper end thereof to hang thearms on 1ateral pins 21 at diametrieallyY `opposite sides of the sleeve14.

By the described arrangement it will be clear that oscillations of thependulum in its own plane, that is to say, in a plane transverse to theaxis of the`valve, will turn the sleeve 14. Thus, the inlet 15 willpartially register with the inlet 13 to allow a limited quantity of airto flow through the valve as when running under normal weatherconditions on a level road. Upon the automobile aseendin a grade thependulum will swing rearwar l', thereby turning the sleeve 14 forwardlyto gradually reduce the effective area of the inlet or to finally closethe inlet upon a redetermined grade having been reached` n the otherhand upon t 1e au toniobile reaching a down grade the pendulum willswing in the opposite direction in creasing the area of the inlet tocause an increased Vdilution of the fuel mixture.

" The forward swinging of the pendulum 18 is limited by a stop 22 whichin the illustrated example is in the form of a wire or bent rod fixed at-on`e end on the valve body',

`onthe ange 12, or other convenient part of the valve body and extendsinto the path of movement of the forward suspension arm 19 ofthependulum.

To manually swing the pendulum to close the air inlet for starting, orunder other con ditions requiring the full richness of the fuel mixture,I connect a string, 23, cord, or the like, at one end with the-pendulumas at 24 and extend the cord or the like to the dash B- or other placefor convenient operahaving an operating rod 25 thereon slidabloI in abushing 26 in the dash, said rod having a handle 27 at its rear end Yatone side of the dash, and a collar 28 or equivalent stop elonientadapted to Contact with the front side of the dash for limiting the pullon the cord.

It will be observed that the eyes of the sleeves 2O are loose on thepins 21 and by reason of this arrangement when the automobile tiltslaterally the pendulum may swing outwardly or inwardly transverse to itsordinary plane of oscillation and without imparting any turning movementto the sleeve 14, to prevent the lateral swinging of the pendulum frombinding the sleeve on the valve art. A

I Wlsh to State in conclusion that although the illustrated exampleconstitutes a practical embodiment `of my invention, I do not limitmyself strictly to the mechanical details hereinx illustrated, sincemanifestly the same'can be considerably varied without departure fromthe sprit of the invention as defined in the appended claim.

Having thus described my invention, I claim as new, and desire to secureby Letters Patent: Y

An air valve including a valve body, a sleeve loose on the valve bodyand controlling, by a turning movement, the flow of air througlaFthevalve body, and a- -pendulum hung on the sleeve, the said sleevebeingoperated by the oscillations of the pendulum in one plane, and saidpendulum being adapted to swing at right angles to the rst planeindependently of the sleeve.

BRAINARD e. iuon

